$.ajax({
    type:"post",
    url:"http://cdn.baidubce.com/v2/cache/purge",
    headers:{
        "host":"http://cdn.baidubce.com",
        "Authorization":"b4d88d1e1a694cefa7ce4ad49e39c85b",
        "Content-Type":"applicaton/json"
    },
    data:JSON.stringify({
        tasks:
            [
                {
                    url:"http://my.domain.com/path/to/purge/1.data"
                }
            ]
    })
})